Fiachrae (a quo Uí Fiachrach) MAC EÓCHAICH

   General Notes:

He was the eponymous ancestor of the Uí Fiachrach, who split into two groups: the Uí Fiachrach Aidne (O'Cleary, O'Heyne, O'Shaughnessy, ...) of southern Connacht, and the Uí Fiachrach Muaidhe (O'Dowd, ...) of northwest Connacht.

   Marriage Information: